9
Bull World Health Organ 2016;94:267–275 | doi: http://dx.doi.org/10.2471/BLT.15.154666 Research 267 The role of drug vendors in improving basic health-care services in Nigeria Jenny Liu, a Lisa M Prach, a Emily Treleaven, a Mara Hansen, b Jennifer Anyanti, c Temple Jagha, d Vince Seaman, b Olufemi Ajumobi e & Chinwoke Isiguzo c Introduction Both specialized emergency care and basic health-care services depend on the presence of a well-staffed and well-trained, health-care workforce. Yet, despite the high burden of disease in sub-Saharan Africa, many countries have a shortage of health workers that is projected to persist well into the future. 1 New strategies for developing a robust health-care workforce are needed to help achieve universal health coverage and health equity. Studies have shown that front-line health workers, includ- ing community health workers, can improve access to – and the equity of – health services. 2,3 Community access to trained health workers and essential health-care products are core elements of patient-centred health-care systems in places without access to formal health care. 4 In sub-Saharan Africa, people oſten seek care from drug vendors (i.e. patent and proprietary medicine vendors) for common but potentially deadly illnesses, such as malaria and diarrhoea. 5 Although vendors are not always recognized as front-line health workers, they provide the first and the main point of care in many com- munities. In some settings, training drug vendors to provide high-quality basic services, such as the treatment of common childhood illnesses and malaria, may offer a cost-effective way of delivering community-based health programmes. 6 Nigeria, which faces many health-care challenges, is a prime example of a country where drug vendors could supple- ment the health-care workforce and improve access to basic primary care currently beyond the reach of many people. Drug vendors, who are not required to have formal pharmacy train- ing but who sell prepackaged, over-the-counter pharmaceuti- cal products on a retail, for-profit basis, 7 are the main access points for many health-care products and services. 8 ey are also consulted for advice and diagnosis, particularly by poor, rural and marginalized people with limited access to formal health services. 912 Previous study has shown that some of the vendors investigated (53/250) had some medical training. 13 ere is no reliable estimate of the number of drug vendors in Nigeria or of their locations and the services they offer – basic information needed to understand how this sec- tor could be better engaged. is is partly because vendors oſten fail to register with the Pharmacist Council of Nigeria, the official regulatory body for both pharmacies and patent and proprietary medicine vendors. 14 Rather, vendors prefer to register with their professional association, the National As- sociation of Patent and Proprietary Medicine Dealers, which provides support such as monitoring the types of products sold, facilitating education and training and giving business and financial assistance. 15,16 However, this organization does not have a regulatory mandate. Any national plan or policy to deliver quality-assured, health-care services and products through patent and propri- etary medicine vendors’ shops depends on knowledge of the characteristics, stocking practices and coverage of these shops. Objective To characterize patent and proprietary medicine vendors and shops in Nigeria and to assess their ability to help improve access to high-quality, primary health-care services. Methods In 2013 and 2014, a census of patent and proprietary medicine shops in 16 states of Nigeria was carried out to determine: (i) the size and coverage of the sector; (ii) the basic characteristics of shops and their staff; and (iii) the range of products stocked for priority health services, particularly for malaria, diarrhoea and family planning. The influence of the medical training of people in charge of the shops on the health-care products stocked and registration with official bodies was assessed by regression analysis. Findings The number of shops per 100 000 population was higher in southern than in northern states, but the average percentage of people in charge with medical training across local government areas was higher in northern states: 52.6% versus 29.7% in southern states. Shops headed by a person with medical training were significantly more likely to stock artemisinin-based combination therapy, oral rehydration salts, zinc, injectable contraceptives and intrauterine contraceptive devices. However, these shops were less likely to be registered with the National Association of Patent and Proprietary Medicine Dealers and more likely to be registered with the regulatory body, the Pharmacist Council of Nigeria. Conclusion Many patent and proprietary medicine vendors in Nigeria were medically trained. With additional training and oversight, they could help improve access to basic health-care services. Specifically, vendors with medical training could participate in task-shifting interventions. a Institute for Health and Aging, Social and Behavioral Sciences, University of California - San Francisco, 3333 California Street (Suite 340), San Francisco, California, CA 94118, United States of America (USA). b Bill & Melinda Gates Foundation, Seattle, Washington, USA. c Society for Family Health, Abuja, Nigeria. d Partners for Human Research Empowerment and Development, Abuja, Nigeria. e National Malaria Elimination Programme, Abuja, Nigeria. Correspondence to Jenny Liu (email: [email protected]). (Submitted: 25 February 2015 – Revised version received: 15 October 2015 – Accepted: 16 November 2015 – Published online: 3 February 2016 )

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Bull World Health Organ 2016;94:267–275 | doi: http://dx.doi.org/10.2471/BLT.15.154666

Research

267

The role of drug vendors in improving basic health-care services in NigeriaJenny Liu,a Lisa M Prach,a Emily Treleaven,a Mara Hansen,b Jennifer Anyanti,c Temple Jagha,d Vince Seaman,b Olufemi Ajumobie & Chinwoke Isiguzoc

IntroductionBoth specialized emergency care and basic health-care services depend on the presence of a well-staffed and well-trained, health-care workforce. Yet, despite the high burden of disease in sub-Saharan Africa, many countries have a shortage of health workers that is projected to persist well into the future.1 New strategies for developing a robust health-care workforce are needed to help achieve universal health coverage and health equity.

Studies have shown that front-line health workers, includ-ing community health workers, can improve access to – and the equity of – health services.2,3 Community access to trained health workers and essential health-care products are core elements of patient-centred health-care systems in places without access to formal health care.4 In sub-Saharan Africa, people often seek care from drug vendors (i.e. patent and proprietary medicine vendors) for common but potentially deadly illnesses, such as malaria and diarrhoea.5 Although vendors are not always recognized as front-line health workers, they provide the first and the main point of care in many com-munities. In some settings, training drug vendors to provide high-quality basic services, such as the treatment of common childhood illnesses and malaria, may offer a cost-effective way of delivering community-based health programmes.6

Nigeria, which faces many health-care challenges, is a prime example of a country where drug vendors could supple-

ment the health-care workforce and improve access to basic primary care currently beyond the reach of many people. Drug vendors, who are not required to have formal pharmacy train-ing but who sell prepackaged, over-the-counter pharmaceuti-cal products on a retail, for-profit basis,7 are the main access points for many health-care products and services.8 They are also consulted for advice and diagnosis, particularly by poor, rural and marginalized people with limited access to formal health services.9–12 Previous study has shown that some of the vendors investigated (53/250) had some medical training.13

There is no reliable estimate of the number of drug vendors in Nigeria or of their locations and the services they offer – basic information needed to understand how this sec-tor could be better engaged. This is partly because vendors often fail to register with the Pharmacist Council of Nigeria, the official regulatory body for both pharmacies and patent and proprietary medicine vendors.14 Rather, vendors prefer to register with their professional association, the National As-sociation of Patent and Proprietary Medicine Dealers, which provides support such as monitoring the types of products sold, facilitating education and training and giving business and financial assistance.15,16 However, this organization does not have a regulatory mandate.

Any national plan or policy to deliver quality-assured, health-care services and products through patent and propri-etary medicine vendors’ shops depends on knowledge of the characteristics, stocking practices and coverage of these shops.

Objective To characterize patent and proprietary medicine vendors and shops in Nigeria and to assess their ability to help improve access to high-quality, primary health-care services.Methods In 2013 and 2014, a census of patent and proprietary medicine shops in 16 states of Nigeria was carried out to determine: (i) the size and coverage of the sector; (ii) the basic characteristics of shops and their staff; and (iii) the range of products stocked for priority health services, particularly for malaria, diarrhoea and family planning. The influence of the medical training of people in charge of the shops on the health-care products stocked and registration with official bodies was assessed by regression analysis.Findings The number of shops per 100 000 population was higher in southern than in northern states, but the average percentage of people in charge with medical training across local government areas was higher in northern states: 52.6% versus 29.7% in southern states. Shops headed by a person with medical training were significantly more likely to stock artemisinin-based combination therapy, oral rehydration salts, zinc, injectable contraceptives and intrauterine contraceptive devices. However, these shops were less likely to be registered with the National Association of Patent and Proprietary Medicine Dealers and more likely to be registered with the regulatory body, the Pharmacist Council of Nigeria.Conclusion Many patent and proprietary medicine vendors in Nigeria were medically trained. With additional training and oversight, they could help improve access to basic health-care services. Specifically, vendors with medical training could participate in task-shifting interventions.

a Institute for Health and Aging, Social and Behavioral Sciences, University of California - San Francisco, 3333 California Street (Suite 340), San Francisco, California, CA 94118, United States of America (USA).

b Bill & Melinda Gates Foundation, Seattle, Washington, USA.c Society for Family Health, Abuja, Nigeria.d Partners for Human Research Empowerment and Development, Abuja, Nigeria.e National Malaria Elimination Programme, Abuja, Nigeria.Correspondence to Jenny Liu (email: [email protected]).(Submitted: 25 February 2015 – Revised version received: 15 October 2015 – Accepted: 16 November 2015 – Published online: 3 February 2016 )

Bull World Health Organ 2016;94:267–275| doi: http://dx.doi.org/10.2471/BLT.15.154666268

ResearchDrug vendors and health care in Nigeria Jenny Liu et al.

We conducted a census of shops in 16 states in Nigeria to: (i) document the size and coverage of the patent and pro-prietary medicine sector; (ii) describe the basic characteristics of the shops and their workers; and (iii) assess the range of products stocked, including those for common illnesses, such as malaria and diarrhoea, as well as for priority health-care needs, such as family planning. We also examined the relationship between the products stocked and the shop’s registration with official bodies and the medical training of the person in charge.

MethodsIn 2013 and 2014, we conducted a census of all patent and proprietary medicine vendors’ shops that could be identified in 16 of the 36 Nigerian states: Akwa-Ibom, Bauchi, Delta, Edo, Jigawa, Kano, Katsina, Kebbi, Kogi, Kwara, Lagos, Ogun, Oyo, Rivers, Sokoto and Zamfara. The census collected information on the basic characteristics of the shops, their owners and the health-care products stocked. Since cultural and sociodemo-graphic factors influence care-seeking behaviour and shape the way com-munities interact with vendors,10,17,18 we selected states across both northern and southern regions of the country. We excluded states in the north-east because of security concerns.

The main fieldwork was conducted in May 2013, with data verification and quality assurance continuing until March 2014. We hired 140 field staff and six supervisors. Field staff underwent three days of training on standard op-erating procedures, the survey protocol, data collection tools and the use of Global Positioning System (GPS) receiv-ers for capturing geospatial data. Two field staff were assigned to each local government area – the administrative level below the state level. First, approval for the study was obtained from the lo-cal branch of the National Association of Patent and Proprietary Medicine Dealers, which also provided a list of members’ outlets in the area. Then, field staff visited all patent and proprietary medicine shops that could be located. They also included any other shops observed incidentally or identified by shop workers or community residents.

The geographical coordinates of each shop were recorded and a brief questionnaire was administered to the person in charge. If the person in charge

was unavailable, field staff returned un-til he or she could be interviewed. The questionnaire asked about the shop’s registration, the personal details of the person in charge (e.g. professional and educational qualifications) and current stocks of health-care products, particularly those for family planning, malaria, pneumonia and diarrhoea. The person in charge was regarded as having had medical training if he or she reported having a formal qualification as a medical doctor, nurse, midwife or pharmacist or having completed a train-ing programme as a community health extension worker or a two- or three-year clinical training programme as a junior community health extension worker.19 In each state, two supervisors supported and managed field staff and monitored data quality. Data were recorded and checked for quality using CSPro (United States Census Bureau, Suitland, United States of America), SPSS (SPSS Inc., Chicago, USA) and ArcGIS v. 10.1 (Esri, Redlands, USA).

Statistical and spatial analyses were conducted using Stata v. 13.1 (StatCorp. LP, College Station, USA) and QGIS v. 2.8 (QGIS Development Team), respec-tively. The main outcomes were: (i) cur-rent stocks of recommended drugs to treat malaria (i.e. any brand of artemis-inin-based combination therapy) and diarrhoea (i.e. oral rehydration salts and zinc); (ii) current stocks of family planning products, including any brand of oral contraceptive pill, injectable con-traceptives, emergency contraception and intrauterine contraceptive devices; and (iii) registration with the National Association of Patent and Proprietary Medicine Dealers or the Pharmacist Council of Nigeria. A shop was regarded as stocking a particular product if the re-spondent indicated that the product was available when read a checklist of types and brands of products. Any products in stock but not on the checklist were noted and reclassified on a case-by-case basis.

We also recorded the geographi-cal location of the shop (i.e. the state and whether in an urban or rural location), the number of staff, the es-timated number of customers per day and the medical training of the person in charge. We calculated the number of shops per 100 000 population in each local government area – the smallest geographical unit for which population data were available – using 2006 national census estimates adjusted for population

growth to 2012.20 In addition, for each local government area, we calculated the percentage of people in charge of the shops who had medical training. Both parameters were shown graphi-cally on maps.

Bivariate and multivariate analyses were used to examine the relationship between current stocks and registration and the medical training of the person in charge and logistic regression analysis was used to calculate odds ratios for the influence of medical training on these outcomes. To account for possible sources of confounding, we controlled for the location of the shop (i.e. the state and urban or rural location), the number of staff employed and the re-ported number of customers per day. To estimate standard errors and enable statistical inference, we used a bootstrap method with 100 repetitions to draw repeated samples from the census data for all regression models. The study was approved by the National Health Research Ethics Committee of Nigeria, Federal Ministry of Health.

ResultsTable 1 lists the characteristics of the 20 642 shops identified in the 16 states. The number in each state ranged from 728 in Sokoto to 3044 in Oyo. Fig. 1 shows the number of patent and pro-prietary medicine shops per 100 000 population in each local government area. On average, there were 24 shops per 100 000 population in all areas com-bined: the average was 19 per 100 000 in the northern states surveyed and 31 per 100 000 in the southern states. In addi-tion, 42.7% (8399) of shops were located in rural areas.

In 7151 shops (34.6%), the person in charge reported having had some form of medical training. Fig. 2 shows the percentage of people in charge with medical training by local govern-ment area. The average percentage was higher across local government areas in northern than in southern states: 52.6% versus 29.7%, respectively (Fig. 2). In the south, Akwa-Ibom, Oyo and Delta states had the lowest average percent-ages with medical training across local government areas (17.4%, 23.8% and 24.9%, respectively), whereas, in Kogi and Rivers states, the figure was over 40% across local government areas.

The health-care products the drug vendor had in stock varied by type.

Bull World Health Organ 2016;94:267–275| doi: http://dx.doi.org/10.2471/BLT.15.154666 269

ResearchDrug vendors and health care in NigeriaJenny Liu et al.

For common illnesses, 82.2% (16 966) of shops stocked an artemisinin-based combination therapy and 92.1% (17 662) stocked oral rehydration salts but only 19.1% (3 671) carried zinc. For family planning, 67.5% (13 941) stocked oral contraceptive pills, 21.7% (4 469) had injectable contraceptives and 25.2% (5 208) had emergency contraception but only 2.9% (566) stocked intrauterine contraceptive devices. Overall, 81.4% (15 619) of shops were registered with the National Association of Patent and Proprietary Medicine Dealers, whereas only 13.4% (2 565) were registered with the Pharmacist Council of Nigeria (Table 1).

The bivariate analysis found a sig-nificant association between medical training and stocks of seven products and registration status. In the multi-variate analysis, the estimated effect size was smaller for most outcomes but all associations except two (i.e. oral con-traceptive and emergency contraception stocks) remained significant. Conse-quently, after controlling for confound-ers, there were significant associations between the medical training of the person in charge and the likelihood that a shop would stock artemisinin-based combination therapy, oral rehydration salts, zinc, injectable contraceptives and intrauterine contraceptive devices. In addition, shops headed by a person with medical training were significantly more likely to be registered with the Pharmacist Council of Nigeria and sig-nificantly less likely to be registered with the National Association of Patent and Proprietary Medicine Dealers (Table 2).

There were no consistent relation-ships between health qualifications and urban or rural location, the number of staff employed and the estimated num-ber of customers per day.

DiscussionOur census of patent and proprietary medicine vendors’ shops revealed two important features of the sector in Nigeria that could be used by policy-makers to expand access to primary care services. First, shops were plentiful in many parts of the country, particularly in southern states. Moreover, in south-ern states, there were more shops than public or private health-care facilities, including health posts, dispensaries, clinics and hospitals:21 31 versus 24 per 100 000 population, respectively. In

Table 1. Census of patent and proprietary medicine shops, 16 states in Nigeria, 2013–2014

Characteristic No. (%) of shops, (n = 20 642)a

Product stocked

Any artemisinin-based combination therapy 16 966 (82.2)Oral rehydration saltsb 17 662 (92.1)Zincb 3 671 (19.1)Any oral contraceptive 13 941 (67.5)Injectable contraceptive 4 469 (21.7)Emergency contraception 5 208 (25.2)Intrauterine contraceptive devicec 566 (2.9)Registrationd

National Association of Patent and Proprietary Medicine Dealers 15 619 (81.4)Pharmacist Council of Nigeria 2 565 (13.4)Medical training of person in chargeNo medical training 13 491 (65.4)Some medical training 7 151 (34.6)Community health extension worker 2 656 (12.9)Nurse or midwife 2 554 (12.4)Junior community health extension worker 1 090 (5.3)Pharmacist 492 (2.4)Doctor 226 (1.1)Other health-care worker 133 (< 1.0)Other staffe

0 5 104 (25.5)1 7 013 (35.0)2 5 775 (28.8)≥ 3 2 147 (10.7)Customers per day (estimated)f

0–10 4 190 (22.0)11–20 5 589 (29.3)21–30 4 756 (25.0)≥ 31 4 523 (23.7)Locationg

Urban 11 258 (57.3)Rural 8 399 (42.7)StateNorthern states combined 7 532 (36.5) Bauchi 1 061 (5.1) Jigawa 770 (3.7) Kano 1 695 (8.2) Katsina 1 522 (7.4) Kebbi 934 (4.5) Sokoto 728 (3.6) Zamfara 822 (4.0)Southern states combined 13 110 (63.5) Akwa-Ibom 1 714 (8.3) Delta 1 394 (6.7) Edo 1 305 (6.3) Kogi 1 088 (5.3) Kwara 1 002 (4.8) Lagos 1 374 (6.7) Ogun 1 271 (6.2) Oyo 3 044 (14.7) Rivers 918 (4.5)

a Total number of shops with data available except where otherwise indicated.b Data were available for only 19 179 shops.c Data were available for only 19 160 shops.d Data were available for only 19 192 shops.e Data were available for only 20 039 shops.f Data were available for only 19 058 shops.g Data were available for only 19 657 shops.

Jenny Liu et al.Drug vendors and health care in NigeriaResearch

270 Bull World Health Organ 2016;94:267–275| doi: http://dx.doi.org/10.2471/BLT.15.154666

northern states, the density of shops was comparable to the density of health-care facilities.21 Thus, these shops may be more accessible than health-care facili-ties in many places.

Second, many drug vendors have undergone formal medical training. We found that the proportion of vendors with medical training was higher in northern states, where health outcomes and service utilization lags behind the rest of the country.8 These vendors may be able to deliver high-quality health services and thereby complement the existing health-care infrastructure. In fact, vendors with medical training were more likely to stock recommended drugs for common illnesses and longer-acting family planning products such as inject-able contraceptives and intrauterine devices, whose use requires assistance from a skilled provider. Although drug vendors are currently prohibited from performing these invasive procedures,7 qualified health professionals, including community health extension workers,

nurses, midwives and doctors, may do so.22 Drug vendors with health profes-sional qualifications must abide by the guidelines for patent and proprietary medicine vendors when conducting business in their shops but may operate within the scope of their professional training outside their shops.

The suggestion that drug vendors could deliver basic health services to underserved populations must, however, be tempered by concerns about quality assurance. Several studies have shown that vendors have poor knowledge of health, health care and drugs, often dispense drugs improperly and may provide services beyond their legal scope of practice.23 Moreover, one study found that there may be no difference in knowledge or stocking practices be-tween vendors with and without medical training,13 which suggests that training may not ensure high-quality care.

More effective engagement of drug vendors in community-based health services depends on recognizing their

role and including them in national health strategies. In 2014, the Govern-ment of Nigeria issued a task-shifting and task-sharing policy for essential health-care services in Nigeria,22 which addressed shortages in the availability of health workers needed to deliver es-sential health services. The policy called for an increase in the capacity of people in the community, including drug ven-dors, to provide treatment, counselling and referral for some reproductive and maternal and child health services, including malaria treatment. Although the services that can be provided by vendors are limited at present, there is an aspiration to delegate more basic health services to lower level cadres (B Orji and M Oyinbo, personal com-munication, 8 September 2015). The implementation of effective training and accreditation programmes for drug vendors will have to reconcile the duties of front-line health workers specified in the task-shifting and task-sharing policy with national treatment guidelines. The

Fig. 1. Patent and proprietary medicine shops per 100 000 population, 16 states in Nigeria, 2013–2014

Adamawa

Borno

YobeKatsina

Kamo

Jigawa

Gombe

Bauchi

Plateau

Taraba

Benue

Cross River

Akwa Ibom

Ebonyi

Enugu

Delta

Edo

Ondo

Ekiti KogiOsun

Anambra

Imo

RiversBayelsa

Abia

Nasarawa

FCT

Kaduna

Sokoto

Kebbi

Zamfara

Niger

Oyo

Ogun

Lagos

Kwara

0 100 200 km

N

PMV shops per 100 000 population

0.0–9.910.0–14.915.0–19.920.0–24.925.0–29.930.0–39.940.0–49.950.0–59.960.0–69.970.0–150.0No data available

Note: The number of shops per 100 000 population is shown for each local government area included in the census.Source: Shape files were obtained from DIVA-GIS.

Bull World Health Organ 2016;94:267–275| doi: http://dx.doi.org/10.2471/BLT.15.154666 271

ResearchDrug vendors and health care in NigeriaJenny Liu et al.

implementation will also have to clarify the legal scope of practice regarding service delivery in nonclinical settings for drug vendors who may also be health professionals. In addition, establishing a holistic approach to monitoring and regulation should be considered. The approach should engage drug vendors who are able and willing to provide a greater range of basic health services at the required quality standard. Such services could include simple diagnostic testing, such as rapid diagnostic tests for malaria, giving injections and dispens-ing antibiotics to treat pneumonia in accordance with integrated community case management of childhood illness.24

Pilot studies have shown that drug vendors in sub-Saharan Africa were capable of delivering additional services, such as rapid diagnostic tests for malar-ia.25–27 In Nigeria, delivery of such tests has increased the precision and quality of malaria case management.6,28–30 These findings support a limited expansion of drug vendors’ activities. In addition, evidence from elsewhere in sub-Saharan Africa demonstrates how drug vendors can be successfully recruited for primary care. In Uganda, an intervention that involved training private drug vendors to provide integrated community case management resulted in the appropri-ate treatment of malaria, pneumonia and diarrhoea in most cases.6,26,31 The accredited drug dispensing outlets

programme in the United Republic of Tanzania demonstrated that formally integrating drug vendors into the health system increased access to affordable, high-quality medicines and services in rural areas.32 In Rwanda, the provision of basic diagnostic and treatment services by a large cadre of community health workers helped reduce public sector costs and improved infectious disease control.33 In these countries, it was found that, to be successful, efforts to engage drug vendors must take into account incentives, the establishment of a regula-tory structure for training, accreditation and monitoring and the level of demand for services in the community.6,31–33

If drug vendors are to be effectively engaged in helping achieve public health goals, it is essential to consider estab-lishing complementary and supportive structures. These structures will ensure a minimum level of quality, provide appropriate medical training, oversight and accountability, and strengthen links to higher-level health services. For example, the self-regulatory and peer-mentoring activities currently carried out by the National Association of Pat-ent and Proprietary Medicine Dealers are broadly accepted by drug vendors.16 These activities could be recognized more formally and strengthened to improve the enforcement of quality standards. In our census, most shops were registered with the National As-

sociation of Patent and Proprietary Medicine Dealers, rather than the Phar-macist Council of Nigeria. Vendors with medical training were twice as likely to be registered with the Pharmacist Council than those without medical training, which suggests that vendors with qualifications may be more likely to follow regulatory and quality assur-ance guidelines.

Formalizing links between qualified drug vendors and other health profes-sionals, including pharmacists and facil-ity-based professionals, could improve access to prescription-only medicines and higher-level care in a complementa-ry fashion. Such links could also increase adherence to best practice, as described in treatment guidelines, and facilitate referrals. Direct competition between accredited drug vendors and community pharmacists would probably be limited because pharmacies are concentrated in urban areas and offer a full range of over-the-counter and prescription medications. Nonetheless, cooperation between the National Association of Pat-ent and Proprietary Medicine Dealers and the Pharmacist Council of Nigeria is required to develop mechanisms that both raise drug vendors’ standards and facilitate regulatory compliance (e.g. by increasing drug vendors’ registration with the Pharmacist Council of Nigeria). If drug vendors are to perform more ad-vanced tasks, professional organizations

Table 2. Association of any medical training of person in charge of a patent and proprietary medicine shop with current stock and registration, 16 states in Nigeria, 2013–2014

Outcome No. (%) of people in charge of shop with any medical training

Likelihood of outcome associated with medical training, OR (95% CI)a

Yes No Bivariate analysis Multivariate analysisb

Product stockedAny artemisinin-based combination therapy 6 513 (38.4) 10 453 (61.6) 2.97 (2.71–3.25) 1.57 (1.39–1.76)Oral rehydration salts 6 681 (37.8) 10 981 (62.2) 1.47 (1.32–1.62) 1.16 (1.01–1.32)Zinc 1 572 (42.8) 2 099 (57.2) 1.34 (1.26–1.43) 1.12 (1.03–1.23)Any oral contraceptive 5 048 (36.2) 8 893 (63.8) 1.24 (1.17–1.31) 0.95 (0.89–1.02)Injectable contraceptive 2 261 (50.6) 2 208 (49.4) 2.36 (2.21–2.52) 1.37 (1.28–1.48)Emergency contraception 1 701 (32.7) 3 507 (67.) 0.89 (0.84–0.95) 1.06 (0.99–1.14)Intrauterine contraceptive device 304 (53.7) 262 (46.3) 2.00 (1.64–2.44) 2.07 (1.71–2.50)RegistrationNational Association of Patent and Proprietary Medicine Dealers

5 506 (35.3) 10 113 (64.7) 0.65 (0.61–0.70) 0.87 (0.79–0.95)

Pharmacist Council of Nigeria 1 137 (44.3) 1 428 (55.7) 1.41 (1.32–1.52) 1.50 (1.34–1.67)

CI: confidence interval; OR: odds ratio.a ORs were estimated using logistic regression. Standard errors for generating confidence intervals were estimated using bootstrap methods with 100 repetitions.

Reference category is person without medical training in charge of the patent and proprietary medicine shop.b The multivariate analysis controlled for the state in which the shop was located, the estimated number of customers per day, urban or rural location and the number

of staff members.

Bull World Health Organ 2016;94:267–275| doi: http://dx.doi.org/10.2471/BLT.15.154666272

ResearchDrug vendors and health care in Nigeria Jenny Liu et al.

of community health extension workers, doctors, nurses and midwives will need to be consulted to define parameters under which drug vendors of different trainings levels and/or professional competencies can operate.

Our study has several limitations. The states in which the census was con-ducted were purposively selected and are thus not representative of Nigeria as a whole. The characteristics of drug vendors in other states may be different and may exhibit variations not captured here. Yet, we sought to locate every patent and proprietary medicine shop in the 16 states. The wide geographical spread of the shops meant that we could conduct only a brief survey at each shop and, moreover, all survey responses were self-reported. Reporting bias is, therefore, a possibility. Only the GPS location of each shop could be indepen-dently verified.

The integration of patent and pro-prietary medicine vendors into the for-mal health-care system could increase access to high-quality, primary health-care services throughout Nigeria. The sector has a large capacity and recent health policy changes are supportive. Policy-makers should consider en-couraging drug vendors with medical training to participate in health inter-ventions because they may be able to offer high-quality services, particularly with appropriate training and monitor-ing. A formal system for registering drug vendors with a regulatory body would help support continuing medical education. ■

AcknowledgementsWe thank the census team. TJ is also affiliated with Partners for Human Research Empowerment and Develop-ment, a consortium focusing on in-

novative approaches for development through evidence; by enhancing pro-gramme planning, research, measure-ment and results.

Funding: The study was supported by the Bill & Melinda Gates Foundation, the Global Fund to Fight AIDS, Tuberculosis and Malaria, USAID and the Nigerian Federal Ministry of Health.

Competing interests: At the time this study was conducted, JL, LMP and ET were affiliated with the Private Sector Health-care Initiative at Global Health Sciences, University of California, San Francisco, USA. During the study, CI, JA and TJ worked for the Society for Family Health, Abuja, Nigeria.

Fig. 2. Proportion of people in charge of patent and proprietary medicine shops that have medical training, 16 states in Nigeria, 2013–2014

0 100 200 km

N

Adamawa

Borno

YobeKatsina

Kamo

Jigawa

Gombe

Bauchi

Plateau

Taraba

Benue

Cross River

Akwa Ibom

Ebonyi

Enugu

Delta

Edo

Ondo

Ekiti KogiOsun

Anambra

Imo

RiversBayelsa

Abia

Nasarawa

FCT

Kaduna

Sokoto

Kebbi

Zamfara

Niger

Oyo

Ogun

Lagos

Kwara

Percent of PPMVs with health training

0.0–19.920.0–39.940.0–59.960.0–79.980.0–99.9No data available

Notes: Percentages are shown for each local government area included in the census. Medical training included self-reported formal training to qualify as a doctor, midwife, nurse, pharmacist, community health extension worker or junior community health extension worker.Source: Shape files were obtained from DIVA-GIS.

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ملخصدور منافذ بيع الدواء يف حتسني خدمات الرعاية الصحية األساسية يف نيجرييا

اسم حتمل التي الــدواء بيع ومتاجر منافذ توصيف الغرض الرشكات الدوائية أو املسجلة حلساهبا يف نيجرييا وتقييم قدرهتا عىل املساعدة يف حتسني الوصول إىل خدمات الرعاية الصحية األساسية

وعالية اجلودة.الطريقة تم يف عامي 2013 و2014 إجراء تعداد ملتاجر بيع األدوية التي حتمل اسم الرشكات الدوائية أو املسجلة حلساهبا يف 16 والية يف نيجرييا لتحديد ما ييل: )أ( حجم القطاع والنطاق الذي يغطيه؛ و)ب( اخلصائص األساسية ملتاجر بيع األدوية واملوظفني العاملني اخلدمات يف الستخدامها املخزنة املنتجات جمموعة و)جـ( هبا؛ الصحية ذات األولوية، وخاصة ملكافحة املالريا واإلسهال وتنظيم عن املسؤولني للموظفني الطبي التدريب تأثري تقييم تم األرسة. الصحية الرعاية منتجات خمزون عىل الدواء بيع متاجر إدارة

والتسجيل لدى اجلهات الرسمية عن طريق حتليل التحوف.من 100,000 يبلغ نطاق يف الدواء بيع متاجر عدد كان النتائج الواليات يف عليه كان مما أكرب اجلنوبية الواليات يف السكان الذين لألشخاص املئوية النسبة متوسط كان ولكن الشاملية، احلكومة املناطق يف الطبي التدريب خربة ولدهيم املتاجر يديرون

يف 29.7% مقابل يف 52.6% الشاملية: الواليات يف أعىل املحلية الواليات اجلنوبية. كانت املتاجر التي يديرها شخص حاصل عىل املرتكز املشرتك العالج ختزين يف احتاماًل األكثر الطبي التدريب ومانعات والزنك، الفموية، اإلماهة وأمالح األرتيميزينني، عىل ومع الرحم. داخل احلمل منع ووسائل للحقن، القابلة احلمل ذلك، كانت هذه املتاجر أقل احتاماًل أن تكون مسجلة لدى اجلمعية الوطنية ملنافذ توزيع األدوية التي حتمل اسم الرشكات الدوائية أو املسجلة حلساهبا واألرجح أن تكون مسجلة لدى اهليئة التنظيمية،

جملس الصيادلة يف نيجرييا.األدوية بيع منافذ إدارة عن املسؤولني من العديد كان االستنتاج حاصلني حلساهبا املسجلة أو الدوائية الرشكات اسم حتمل التي اإلضافية التدريبات من املزيد خالل ومن الطبي. التدريب عىل خدمات إىل الوصول حتسني يف املساعدة يمكنهم واإلرشاف، للقائمني يمكن التحديد، وجه وعىل األساسية. الصحية الرعاية يف املشاركة الطبي التدريب عىل احلاصلني الدواء بيع منافذ عىل

تدخالت حتويل املهام.

摘要药品供应商在尼日利亚改善基本卫生保健服务中的作用目的 旨在分析尼日利亚专利和专有药品供应商和商店的特征以及评估他们在提供高质量初级医疗卫生服务方面的能力。方法 2013 年至 2014 年中,尼日利亚对其 16 个州展开了专利和专有药品商店普查,以确定 :(1) 该行业部门的规模和覆盖面 ;(2) 商店及其员工的基本特征 ;和 (3) 为主要卫生服务,尤其是疟疾、腹泻以及生育计划存储的产品范围。采用回归分析法分析了针对商店负责人员进行医疗培训对医疗卫生产品存储和官方机构注册的影响。结果 南部地区每十万人的商店数高于北部地区的数量,但是在北部地区,整个当地政府区域,负责医疗

培训的人员平均比例较高 :为 52.6%,而在南部地区为 29.7%。由经过医疗培训的人员负责的商店存储青蒿素为基础的联合疗法、经口补液盐、锌、注射式避孕药和子宫环的可能性显著更大。然而,这些商店在国家专利和专有医药经销商处注册的可能性更小,而在尼日利亚药剂师理事会这一监管机构注册的可能性更大。结论 尼日利亚许多专利和专有药品供应商都经过医疗培训。通过额外的培训和监督,他们能够帮助改善基本医疗卫生服务的普及率。具体而言,经过医疗培训的供应商能够参与重新分工的干预措施。

Résumé

Rôle des vendeurs de médicaments dans l’amélioration des services médicaux de base au NigériaObjectif Caractériser les vendeurs et magasins de spécialités pharmaceutiques et de médicaments brevetés au Nigéria et évaluer leur capacité de contribuer à l’amélioration de l’accès à des services de soins primaires de qualité.

En 2013 et 2014, un recensement des magasins de spécialités pharmaceutiques et de médicaments brevetés a été réalisé dans 16 États du Nigéria afin de déterminer: (i) la taille et l’offre de ce secteur; (ii) les caractéristiques de base des magasins et de leur personnel; et (iii) la gamme de produits en stock pour les soins prioritaires, en particulier pour le paludisme, la diarrhée et la planification familiale. L’influence de la formation médicale des personnes responsables des magasins sur les produits en stock et l’inscription auprès d’organismes officiels a été évaluée au moyen d’une analyse de régression.

Le nombre de magasins pour 100 000 habitants était plus élevé dans les États du Sud que dans ceux du Nord, mais le pourcentage moyen de personnes chargées de la formation médicale dans les

zones de gouvernement local était supérieur dans les États du Nord: 52,6% contre 29,7% dans les États du Sud. Les magasins dirigés par une personne ayant une formation médicale étaient sensiblement plus nombreux à avoir en stock des associations médicamenteuses comportant de l’artémisinine, des sels de réhydratation orale, du zinc, des contraceptifs injectables et des dispositifs intra-utérins. Cependant, ces magasins étaient moins nombreux à être inscrits auprès de l’Association nationale des distributeurs de médicaments brevetés et de spécialités pharmaceutiques et plus nombreux à l’être auprès de l’organisme de règlementation, le Conseil des pharmaciens du Nigéria.Conclusion De nombreux vendeurs de spécialités pharmaceutiques et de médicaments brevetés au Nigéria avaient reçu une formation médicale. Un contrôle et une formation complémentaire leur permettraient de contribuer à améliorer l’accès aux services médicaux de base. Les vendeurs ayant une formation médicale pourraient notamment participer aux interventions de transfert des tâches.

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ResearchDrug vendors and health care in Nigeria Jenny Liu et al.

Резюме

Роль продавцов лекарств в совершенствовании базового медико-санитарного обслуживания в НигерииЦель Охарактеризовать продавцов патентованных лекарственных средств и соответствующие магазины в Нигерии и дать оценку их способности увеличить доступ к высококачественному первичному медико-санитарному обслуживанию.Методы В 2013 и 2014 гг. была проведена перепись магазинов, реализующих патентованные лекарственные средства, в 16 штатах Нигерии с целью определить: (i) размер и охват сектора, (ii) основные характеристики магазинов и их персонала и (iii) ассортимент имеющихся в наличии товаров для оказания первичной медико-санитарной помощи при лечении малярии, диареи и планировании семьи. Для оценки того, как влияет наличие медицинского образования у заведующих магазинами на наличие товаров медицинского назначения и постановку на учет в официальных органах, использовался регрессионный анализ.Результаты Количество магазинов на 100 000 жителей было больше в южных штатах, чем в северных, однако в среднем процент заведующих магазином с медицинским образованием на различных территориях местного управления

был гораздо выше в северных штатах: 52,6% по сравнению с 29,7% в южных штатах. В магазинах, которыми заведовали лица с медицинским образованием, вероятность наличия в продаже комбинированной терапии на базе артемизинина, солей для пероральной регидратации, цинка, инъецируемых контрацептивов и внутриматочных противозачаточных средств была значительно выше. Однако эти магазины проходили регистрацию с меньшей вероятностью в Национальной ассоциации торговцев патентованными лекарственными средствами и с большей вероятностью в регулятивном органе — Совете фармацевтов Нигерии.Вывод Большинство продавцов патентованных лекарственных средств в Нигерии получили медицинское образование. При дополнительной подготовке и надзоре они могли бы поспособствовать увеличению доступа к базовому медико-санитарному обслуживанию. В частности, продавцы с медицинским образованием могли бы принимать участие в мероприятиях по перераспределению обязанностей.

Resumen

El papel de los proveedores de medicamentos en la mejora de los servicios sanitarios básicos en NigeriaObjetivo Caracterizar los proveedores y establecimientos de medicamentos patentados y de venta libre en Nigeria y evaluar su capacidad de ayudar a mejorar el acceso a servicios sanitarios primarios de alta calidad.Métodos En 2013 y 2014, se llevó a cabo un censo de los establecimientos de medicamentos patentados y de venta libre de 16 estados de Nigeria con el objetivo de de determinar: (i) el tamaño y cobertura del sector; (ii) las características básicas de los establecimientos y el personal; y (iii) la gama de productos destinados a servicios sanitarios prioritarios, en concreto para la malaria, la diarrea y la planificación familiar. Un análisis de regresión evaluó la influencia de la formación médica de las personas a cargo de los establecimientos de productos sanitarios almacenados y el registro en los organismos oficiales.Resultados El número de establecimientos por cada 100 000 habitantes era mayor en los estados del sur que en los del norte, aunque el porcentaje medio de personas con formación médica en ámbitos

gubernamentales locales era superior en los estados del norte: un 52,6% frente a un 29,7% en los estados del sur. Los establecimientos dirigidos por una persona con formación médica tenían almacenados más productos para tratamientos combinados basados en la artemisinina, sales de rehidratación oral, zinc, anticonceptivos inyectables y dispositivos anticonceptivos intrauterinos. No obstante, era menos probable que estos establecimientos estuvieran registrados en la Asociación Nacional de Comerciantes de Medicamentos Patentados y de Venta Libre, pero sí en el organismo regulador, el Consejo de Farmacéuticos de Nigeria.Conclusión Se proporcionó formación médica a varios proveedores de medicamentos patentados y de venta libre en Nigeria. Con mayor formación y supervisión, podrían ayudar a mejorar el acceso a servicios sanitarios básicos. En concreto, los proveedores con formación médica podrían participar en intervenciones de rotación de tareas.

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